The Glock 21 is a pistol manufactured by Glock. It is a large frame Glock based on the Glock 20 and fires the .45 ACP ammunition. It uses a modified Glock 20 frame, .45 ACP barrel, modified slide and magazine but these differences are quite minor and it does look identical to a Glock 20. It is a very popular sports and law enforcement pistol in the United States, because of its reputation for rugged dependability, 13-round magazine capacity, and it being chambered in the popular and effective .45 ACP cartridge. Springfield Armory M1911A1 . ... Gaston Glock (1929- ) is an Austrian engineer, and founder of GLOCK. In 2005, Gaston Glock was ranked number 43 on a list of the 100 wealthiest Austrains in the Austrian economy magazine Trend. ... This article does not cite its references or sources. ... The word calibre (British English) or caliber (American English) designates the interior diameter of a tube or the exterior diameter of a wire or rod. ... .45 ACP cartridges .45 redirects here. ... In firearms terminology, an action is the system of operation that the firearm employs to seal the breech (in a breech-loading firearm), and to load consecutive rounds. ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... A 30-round STANAG magazine. ... A Browning 9 millimeter Hi-Power Ordnance pistol of the French Navy, 19th century, using a Percussion cap mechanism Derringers were small and easily hidden. ... Glock is an Austrian weapons manufacturer (named after the founder Gaston Glock) founded in 1963 in Deutsch-Wagram, near Vienna, Austria. ... In firearms terminology, the receiver is the part of the firearm that houses the operating parts of the gun. ... The GLOCK 20 is a pistol manufactured by GLOCK. It is a standard frame GLOCK, roughly 7mm longer and 2. ... .45 ACP cartridges .45 redirects here. ... Boxes of ammunition clog a warehouse in Baghdad Ammunition is a generic military term meaning (the assembly of) a projectile and its propellant. ... The barrel of a firearm is the tube, usually metal, through which a controlled explosion is released in order to propel a projectile out of the end at great speed. ... In firearms the slide is the upper half of a semi-automatic pistol. ... A 30-round STANAG magazine. ... The GLOCK 20 is a pistol manufactured by GLOCK. It is a standard frame GLOCK, roughly 7mm longer and 2. ... Rimmed, centerfire . ... .45 ACP cartridges .45 redirects here. ...

The Glock 21 has undergone 3 major revisions since its introduction and current models are called 3rd generation Glock 21s.

The difference between the Glock 21 and the Glock 21C is that the barrel and slide are compensated on the C model to reduce muzzle climb while shooting the pistol. This article or section does not adequately cite its references or sources. ... The muzzle of a firearm is the end of the barrel from which the projectile will exit. ...

Additionally, there are Glock 21 "Mariner" (underwater firing capability) / "Tactical" (Extended/Threaded Barrel) Models available in the Philippines.

Glock 21SF (Short Frame)

Another revision hit the market in Spring 2007, in an attempt to make fullsize .45 Glock more appealing to shooters with smaller hands. Glock has releasd the model 21SF, which stands for "Short Frame". The pistol was originally designed to compete in the now cancelled US Military Trials that were searching for a .45 ACP pistol to replace the Beretta M9. The first 21SF's designed for the military included revisions such as ambidextrous magazine release and a M1913 Picatinny rail system (which replaces the standard universal rail system on other Glock pistols), along with the frame reduction designed to make the grip more universal. The grip reduction removed material mainly from the backstrap of the grip. Initial information is that only a limited number of 21SF's in full military spec will enter the public market, and that the company is going to mass produce a grip reduced model with the 1913 style frame rails. The 21SF is currently available with the 1913 rail and the Glock rail. Eventually it will be available with the Glock rail and the original style magazine release (for those that prefer it over the ambidextrous release). The Beretta 92SB-F, Beretta 92FS, Beretta 92G, Beretta 92FS Inox, and Beretta 96 are semi-automatic pistols, locked-breech delayed recoil operated, double/single action pistols, chambered for the 9 mm Parabellum cartridge (92 series) and the . ...

References

1. ^ Technical data on the G21 from Glock.com

External links

• Glock's website